Composition of matter for increasing growth of yeast when mixed with dough



Patented @ct. no, 19122.

ancet mm canine.

ERNEST WALTER GEEJRE,

F 'I J'PPER NORWOOD, LONDON, ENGLAND.

comrosITIoN on MATTER ron mcnnasmc GROWTH or ,YnasT wnnn inrxnn wrTn DOUG-H. a

in Drawing.

I have filed an application in' England August 4, 1917, Patent'No. 143,938), of which the following is a specification. This invention relates to the manufacture of improved foods or stimulants forpromoting the growth of yeast afterit has been mixed with other ingredients to form dough.

The object of this invention is to provide a food or stimulant for yeast, which when mixed with the yeast and other ingredients employed in making dough, will cause a greater increase in the growth of the yeast during the period of fermentation. This object being attained, it follows that a much smallerquantity of ,yeast can be employed -1n making the dougli. n

It has been proposed heretofore, to employ germ of cereals as afood or stimulant for yeast used in brewing: and to combine it,

- and other ingredients, with flour, for making bread, biscuits,- pastry and the like. In

- all such cases however, the germ of the cereal is subjected to a heating process, at a high temperature, before it is mixed with the 1 east.

" y We have found that it is essential toretain the life or active properties, residing in such 40 germ if it is to be capable of promotinggrowth of the yeast, during fermentation.

' We have also found that this life is entirely destroyed if the germ is subjected to a heating process, before being mixed with the yeast. T v

' The invention .consists in mixing or com bining the germ of a cereal, such as wheat, barley, oats, maize, dari or the like-which has not been submitted to a heating process,

\ and in which, therefore,

Application filed reb ma'r 2a, 1921. Se rial No. 447,250.

thefenzymes have not been injured' or destroyed-with ammonium carbonate, 9. .phos hate, a starch, and a certain proportion of a cereal meal. The phosphate employed will be, preferably,

one of the following: ammonium phosphate,

hydrogen disodium phosphate, monobasic phosphate of soda or dihydrogen sodium phosphate. The ingredients are mixed or combined'in a dry state.

The approximate proportions of such ingredients is shown in the following formula, which is given as an example Per cent.

I phosphate as hereinbefore described 3 7o It'is known that the yeast contained in the dough produces buds and new cells and thereby increases in quantity during the period between the mixing of the dough and 76 the bakin thereof. The'addition of a stimulant or ood made in accordance with our invention causes a much greateri'ncrease in the number of buds'and" cells produced by v ,the yeast as will be seen by the following 34% comparison. This comparison was made by counting the growth in a four hour dough with a 3- millimeter'chamben- 3t oaof yeast, mixed into dough without any foodor stimulant, contained 96 cells, 10 buds. After being allowed to work, or ferment, for .four hours it was found to contain 134 cells, 535 alguds, showing an increase of 38 cells, 25

15oz, oflyeast in a dough to which had 9 I been added 14 drachms of yeast food or stimulant made in' accordance with this invention, contained 65 cells, '6 buds. After working or fermenting for four hours it was found to contain 138 cells, 53 buds, showing an increase of 73 cells, 47 buds.

Claims z 1. The herein described composition of matter for increasing growth of yeast when 3 parts of a phosphate, 10 parts of a starch mixed with dough, consisting of the germ of and 26 parts of cereal meal. a cerealwhich has not been submitted to In testimony whereof we aflix our signaheat, ammonium carbonate, a phosphate, a tures in presence of two witnesses.

5 starch and cereal meal. 7'

4 2. The herein described composition of matter for increasing growth of yeast when ERNEST W R GEERE' mixed with dough, consisting of 60 parts of Witnesses: the germ of a cereal which has not beensub- H. C. FOSTER, 10 mitted to heat, 1 part ammonium carbonate, S. A. Rooms. 

